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Envelope

A small tool to track your US plain letter

Install / Use

/learn @1997cui/Envelope
About this skill

Quality Score

0/100

Supported Platforms

Universal

README

Envelope


A lightweight web service to generate USPS first class mail envelope with a traceable barcode.

Features

  1. Generate a ready-to-print envelope pdf and html
  2. Support both #10 Envelope and 4in*2in label
  3. The envelope has a traceable barcode
  4. Show status of your first class mail without certify!

Install

Generate config

  • Move app/config.py.example to app/config.py

  • config your USPS Web Tools API username, Business Gateway username and Password Guide

  • config a Flask session key

  • Config your redis server address

Docker

  • Modify the docker file to meet your need
    • CMD ["gunicorn", "app:app", "--workers", "4", "--worker-class", "app.ConfigurableWorker", "--bind", "0.0.0.0:8080", "--forwarded-allow-ips",""]
      • Define the path and the port
  • docker-compose up -d

Enjoy

  • Open http://localhost:8080/envelope/ in your browser

Related Skills

View on GitHub
GitHub Stars142
CategoryDevelopment
Updated2d ago
Forks30

Languages

Python

Security Score

100/100

Audited on Mar 27, 2026

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